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Now showing items 91-100 of 145
Observation of B0s →K*∓ K∓ and evidence for B0s →K* −π+ decays
(IOP Publishing, 2014)
Measurements of the branching fractions of B0s→K∗±K∓ and B0s→K∗±π∓ decays are performed using a data sample corresponding to 1.0 fb−1 of proton-proton collision data collected with the LHCb detector at a centre-of-mass ...
Precision measurement of the B0s–B0s oscillation frequency with the decay B0s →D−sπ+
(IOP Publishing, 2013)
A key ingredient to searches for physics beyond the Standard Model
in B0s
mixing phenomena is the measurement of the B0s
– B0
s oscillation frequency,
which is equivalent to the mass difference 1ms of the B0s
mass ...
Measurement of the J/ψ pair production cross-section in pp collisions at √s=13 TeV
(Springer, 2017)
The production cross-section of J/ψ pairs is measured using a data sample of pp collisions collected by the LHCb experiment at a centre-of-mass energy of √s=13 TeV, corresponding to an integrated luminosity of 279 ±11 pb−1. ...
Observation of the decay B0s→ψ(2S)K+π−
(Elsevier, 2015)
The decay B0s→ψ(2S)K+π−is observed using a data set corresponding to an integrated luminosity of 3.0fb−1collected by the LHCb experiment in ppcollisions at centre-of-mass energies of 7 and 8 TeV. The branching fraction ...
Observation of the Λ0b → J/ψ pπ − decay
(Springer, 2014)
The first observation of the Cabibbo-suppressed decay Λ 0b → J/ψpπ − is reported using a data sample of proton-proton collisions at 7 and 8 TeV, corresponding to an integrated luminosity of 3 fb−1. A prominent signal is ...
Observation of the B0→ρ0ρ0 decay from an amplitude analysis of B0→(π+π−)(π+π−)decays
(Elsevier, 2015)
Proton–proton collision data recorded in 2011 and 2012 by the LHCb experiment, corresponding to an integrated luminosity of 3.0fb−1, are analysed to search for the charmless B0→ρ0ρ0decay. More than 600 B0→(π+π−)(π+π−)signal ...
Study of bb¯correlations in high energy proton-proton collisions
(Springer, 2017)
Kinematic correlations for pairs of beauty hadrons, produced in high energy proton-proton collisions, are studied. The data sample used was collected with the LHCb experiment at centre-of-mass energies of 7 and 8 TeV and ...
Precise measurements of the properties of the B1(5721)0,+ and B *2(5747)0,+ states and observation of B+,0π−,+ mass structures
(Springer, 2015)
Invariant mass distributions of B+π− and B0π+ combinations are investigated in order to study excited B mesons. The analysis is based on a data sample corresponding to 3.0 fb−1 of pp collision data, recorded by the LHCb ...
Search for CP violation in D0→π−π+π0 decays with the energy test
(Elsevier, 2015)
A search for time-integrated CPviolation in the Cabibbo-suppressed decay D0→π−π+π0is performed using for the first time an unbinned model-independent technique known as the energy test. Using proton–proton collision data, ...
Precision measurement of the ratio of the Λ0b to B¯ 0 lifetimes
(Elsevier, 2014)
The LHCb measurement of the lifetime ratio of the Λ b 0 baryon to the B¯ 0 meson is
updated using data corresponding to an integrated luminosity of 3.0 fb− 1 collected using 7
and 8 TeV centre-of-mass energy pp collisions ...